IMG = gcr.io/kubeflow-examples/distributed_worker

# List any changed  files. We only include files in the notebooks directory.
# because that is the code in the docker image.
# In particular we exclude changes to the ksonnet configs.
CHANGED_FILES := $(shell git diff-files --relative=tensorflow/tf_sample)

ifeq ($(strip $(CHANGED_FILES)),)
# Changed files is empty; not dirty
# Don't include --dirty because it could be dirty if files outside the ones we care
# about changed.
GIT_VERSION := $(shell git describe --always)
else
GIT_VERSION := $(shell git describe --always)-dirty-$(shell git diff | shasum -a256 | cut -c -6)
endif

TAG := $(shell date +v%Y%m%d)-$(GIT_VERSION)
all: build

# To build without the cache set the environment variable
# export DOCKER_BUILD_OPTS=--no-cache
build:
	docker build ${DOCKER_BUILD_OPTS} -t $(IMG):$(TAG) . \
           --label=git-verions=$(GIT_VERSION)
	docker tag $(IMG):$(TAG) $(IMG):latest
	@echo Built $(IMG):latest
	@echo Built $(IMG):$(TAG)


# Build but don't attach the latest tag. This allows manual testing/inspection of the image
# first.
push: build
	gcloud docker -- push $(IMG):$(TAG)
	@echo Pushed $(IMG) with  :$(TAG) tags

push-latest: push
	gcloud container images add-tag --quiet $(IMG):$(TAG) $(IMG):latest --verbosity=info
	echo created $(IMG):latest
